package client.logic.connect;

/*Copyright 2010 Dietmar Wieser, Margit Mutschlechner and Florian Häser. All rights reserved.

 Redistribution and use in source and binary forms, with or without modification, are
 permitted provided that the following conditions are met:

 1. Redistributions of source code must retain the above copyright notice, this list of
 conditions and the following disclaimer.

 2. Redistributions in binary form must reproduce the above copyright notice, this list
 of conditions and the following disclaimer in the documentation and/or other materials
 provided with the distribution.

 THIS SOFTWARE IS PROVIDED BY Dietmar Wieser, Margit Mutschlechner and Florian Häser ``AS IS''
 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 
 OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 
 Dietmar Wieser, Margit Mutschlechner and Florian Häser OR
 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 The views and conclusions contained in the software and documentation are those of the
 authors and should not be interpreted as representing official policies, either expressed
 or implied, of Dietmar Wieser, Margit Mutschlechner and Florian Häser.
 */
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import org.apache.http.client.ClientProtocolException;

/**
 * A HttpGet-request
 * 
 * @author Margit Mutschlechner
 */
public class MyHttpGet {
	/** the server url */
//	 private static final String SERVERURL =
//	 "http://138.232.252.16:8080/DBLPServer/connect";
	private static final String SERVERURL = "http://haeser.it:8080/DBLPServer/connect";

	/**
	 * a http-get request
	 * 
	 * @return the response in form of a byte array
	 * @param aditionalParmas
	 *            additional parameters for the url.
	 * */
	public static byte[] requestHttpGet(String aditionalParams) {
		InputStream is = null;
		try {
			URL url = new URL(encodeUrl(SERVERURL + aditionalParams));
			HttpURLConnection httpConn = (HttpURLConnection) url
					.openConnection();

			httpConn.setAllowUserInteraction(false);
			httpConn.setInstanceFollowRedirects(true);
			httpConn.setRequestMethod("GET");
			httpConn.connect();
			if (httpConn.getResponseCode() == HttpURLConnection.HTTP_OK) {
				is = httpConn.getInputStream();
				byte[] response = new byte[is.available()];
				is.read(response, 0, response.length);
				is.close();
				return response;
			}
		} catch (ClientProtocolException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
		return null;
	}

	/**
	 * encodes the url
	 * 
	 * @return the encoded url
	 * @param str
	 *            the not encoded url
	 * */
	private static String encodeUrl(String str) {
		if (str == null)
			return null;

		StringBuffer resultStr = new StringBuffer(str.length());
		char tmpChar;

		for (int ix = 0; ix < str.length(); ix++) {
			tmpChar = str.charAt(ix);
			switch (tmpChar) {
			case ' ':
				resultStr.append("%20");
				break;
			// case '-':
			// resultStr.append("%2D");
			// break;
			// case '/':
			// resultStr.append("%2F");
			// break;
			// case ':':
			// resultStr.append("%3A");
			// break;
			// case '=':
			// resultStr.append("%3D");
			// break;
			// case '?':
			// resultStr.append("%3F");
			// break;
			// case '#':
			// resultStr.append("%23");
			// break;
			// case '\r':
			// resultStr.append("%0D");
			// break;
			// case '\n':
			// resultStr.append("%0A");
			// break;
			default:
				resultStr.append(tmpChar);
				break;
			}
		}
		return resultStr.toString();
	}

}
